/* Generate the figures for M[] using intxtdat.class which takes its input
   from infln.txt and puts them in infln2.txt */

class infln {

  //Inflation multipliers relative to year 2000 starting with 1966
  private static double M[] = { 
    11.06377835626627,    // 1966 =  0
    10.686242816091953,   // 1967 =  1
    10.418665732796358,   // 1968 =  2
     9.844639311714097,   // 1969 =  3
     9.40132722389003,    // 1970 =  4
     8.712988724557036,   // 1971 =  5
     8.014682112068966,   // 1972 =  6
     7.442276422764228,   // 1973 =  7
     6.721757794848622,   // 1974 =  8
     5.651690729483283,   // 1975 =  9
     4.521696177521088,   // 1976 = 10
     3.9271995247838425,  // 1977 = 11
     3.4998529498264808,  // 1978 = 12
     3.229712858926342,   // 1979 = 13
     2.7560794849228776,  // 1980 = 14
     2.3934432823813356,  // 1981 = 15
     2.136634587762137,   // 1982 = 16
     2.0278440460772953,  // 1983 = 17
     1.9251625845277769,  // 1984 = 18
     1.8404837761761885,  // 1985 = 19
     1.7426998213396596,  // 1986 = 20
     1.6796804426377596,  // 1987 = 21
     1.619515514425694,   // 1988 = 22
     1.5167605597899514,  // 1989 = 23
     1.4082410300104138,  // 1990 = 24
     1.2879004329004329,  // 1991 = 25
     1.2328491805316701,  // 1992 = 26
     1.2018461662761575,  // 1993 = 27
     1.1789847031782517,  // 1994 = 28
     1.1458806763471094,  // 1995 = 29
     1.1099897397630818,  // 1996 = 30
     1.0835503432702638,  // 1997 = 31
     1.0456198928037959,  // 1998 = 32
     1.0176329741747905,  // 1999 = 33
     1.0000000000000000   // 2000 = 34
  };

  public static double getValue(
    double x,  // amount of money in £s
    int y      // year in which it is contexed 1966 is year zero
  ) { 
    if(y > 34) return x;  // don't apply inflation if beyond Y2k
    return x * M[y];      // equivalent number of £s priced in the year 2000
  }

  public static int getInt(
    int x,  //amount of money in integral pence
    int y   //year
  ) {
    //if beyond the year 2000, don't apply inflation
    if(y < 1966 || y > 2000) return x;
    return (int)Math.round(M[y - 1966] * x);
  }
}